Jim:
A single cylinder fouling like that generally means something
along the lines that you are thinking. Another possibility is a broken
ring - but that gets even uglier. A third possibility is that a cam lobe
has gone flat.
What does a compression test show?
If you do pop the head off, consider the stainless valves from
BPNW. Very reasonably priced and since they are polished and what not
they will add a couple of ponies...
Cheers,
Vance
-----Original Message-----
From: owner-6pack@Autox.Team.Net [mailto:owner-6pack@Autox.Team.Net] On
Behalf Of Jim Jones
Sent: October 31, 2007 6:55 PM
To: 6pack@autox.team.net
Subject: [6pack] #2 cyl plug fouled
Gang:
The spark plug in #2 cylinger is fouling and probably causing my motor
to misfire intermittently. The other plugs are normal light tan in
appearance. It seems unlikely that only that cylinder could run rich. So
I'm guessing that oil may be leaking down the valve stem into the
combustion chamber.
If I'm right, would teflon valve seals be worth considering? Or do I
need to be looking for other causes here?
I hate the thought of removing the cylinder head. Shipwright's
Syndrome is sure to strike! (9.5:1 head grind, stellite valves, new
springs, new rocker shaft, etc.) Somebody stop me!!!!!
Jim
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